2008*2009-2010
=2008×(2008+1)-2010
=2008²+2008-2010
=2008²-2
2008+2009*2006
=2008+(2008+1)(2008-2)
=2008+2008²-2008-2
=2008²-2
2008*2009-2010分之2008+2009*2006
=2008²-2分之2008²-2
=1
2008*2009-2010
=2008×(2008+1)-2010
=2008²+2008-2010
=2008²-2
2008+2009*2006
=2008+(2008+1)(2008-2)
=2008+2008²-2008-2
=2008²-2
2008*2009-2010分之2008+2009*2006
=2008²-2分之2008²-2
=1